LiMe in tetrahydrofuran Ar-atmosphere; treatment of HC(SiMe3)3 (in THF) with LiMe (in Et2O), evapn. of Et2O, refluxing for 4 h, addn. of HgBr2, stirring at room temp. for 2 h; solvent removal (vac.), extn. into light petroleum, chromy. (SiO2, lightpetroleum);

1: LiMe / tetrahydrofuran 2: Mg / tetrahydrofuran; diethyl ether View Scheme

MeLi in diethyl ether Ar-atmosphere; dropwise addn. of LiMe to Hg-compd. at -10°C, stirring at room temp. for 2 h; not isolated, detd. by NMR spectroscopy;

Mg in tetrahydrofuran; diethyl ether Ar-atmosphere; treatment of PhCH2Cl with Mg (in Et2O), dropwise add. to Hg-compd. (in THF; -40°C, stirring), stirring at room temp. overnight; solvent removal (vac.), extn. into light petroleum, concn., fractional crystn. (-20°C);

in tetrahydrofuran; diethyl ether addn. of TsiH in dry THF to MeLi in ether, stirred, 20h, 20°C, then reflux, 30min, dropwise addn. of anhydrous HgCl2 to refluxing soln.,further reflux, 5h, solvent removed;

LiMe in tetrahydrofuran Ar-atmosphere; treatment of HC(SiMe3)3 (in THF) with LiMe (in Et2O), evapn. of Et2O, refluxing for 4 h, addn. of Hg-compd.;

LiMe in tetrahydrofuran Ar-atmosphere; treatment of HC(SiMe3)3 (in THF) with LiMe (in Et2O), evapn. of Et2O, refluxing for 4 h, dropwise addn. to Hg-compd., refluxing for 3 h; addn. to ice-water, extn. into Et2O, drying (MgSO4), solvent removal, extn. into hot heptane, fractional crystn.;